Fan control method and device, air conditioner and storage medium

Abstract

The invention discloses a fan control method and device, an air conditioner and a storage medium. The method comprises the steps that whether a compressor of the air conditioner needs to be started or not is determined under the control of a starting instruction for starting the air conditioner; if the compressor of the air conditioner needs to be started, the condensing pressure of an outdoor unit of the air conditioner is obtained; if the condensing pressure is larger than a first preset high-pressure critical value, a fan of the air conditioner is started, and a compressor is kept in a closed state; and the target gear of the draught fan is confirmed according to the condensation pressure, and after the draught fan is controlled to operate for a first preset time according to the rotating speed corresponding to the target gear, the compressor is controlled to be started. High-voltage protection under extreme working conditions can be avoided, and stable operation of the air conditioner is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a fan control method, a fan control device, an air conditioner and a storage medium. Background Art

[0002] The outdoor unit of the air conditioner is generally equipped with a condensing pressure sensor to detect the condensing pressure. When the compressor of the air conditioner is started, the condensing pressure of the outdoor unit will change accordingly as the refrigerant system continues to compress and circulate. At this time, the condensing pressure can be adjusted by adjusting the fan speed of the outdoor unit, so that the refrigerant system can achieve safe and stable circulation.

[0003] The commonly used method at present is that the fan adjusts the wind speed according to the current condensing pressure. However, there is a certain lag in the change of wind speed. When the compressor is started under some extreme conditions, for example, under high temperature and high load conditions, the compressor high-pressure protection problem is prone to occur, resulting in the air conditioner being unable to operate normally. Summary of the invention

[0004] The embodiments of the present invention provide a fan control method, device, air conditioner and storage medium, aiming to solve the problem that compressor high pressure protection is prone to occur under extreme working conditions, resulting in the air conditioner being unable to operate.

[0005] In a first aspect, an embodiment of the present invention provides a fan control method, which is applied to an air conditioner. The method includes:

[0006] Controlled by a start-up instruction for starting the air conditioner, confirming whether it is necessary to start the compressor of the air conditioner;

[0007] If it is necessary to start the compressor of the air conditioner, the condensing pressure of the outdoor unit of the air conditioner is obtained;

[0008] If the condensing pressure is greater than a first preset high pressure critical value, starting the fan of the air conditioner and maintaining the compressor in an off state;

[0009] The compressor is started after the target gear of the fan is confirmed according to the condensing pressure and the fan is controlled to run at a speed corresponding to the target gear for a first preset time.

[0010] In a second aspect, an embodiment of the present invention further provides a fan control device, the device comprising:

[0011] A first confirmation unit, configured to be controlled by a start instruction for starting the air conditioner and to confirm whether the compressor of the air conditioner needs to be started;

[0012] a first acquisition unit, configured to acquire a condensing pressure of an outdoor unit of the air conditioner if it is necessary to start a compressor of the air conditioner;

[0013] a first starting unit, configured to start the fan of the air conditioner and maintain the compressor in an off state if the condensing pressure is greater than a first preset high pressure threshold;

[0014] The second starting unit determines the target gear of the fan according to the condensing pressure and controls the fan to run at a speed corresponding to the target gear for a first preset time, and then controls the compressor to start.

[0015] In a third aspect, an embodiment of the present invention further provides an air conditioner, which includes a memory and a processor connected to the memory, wherein a computer program is stored in the memory, and the processor implements the above method when executing the computer program.

[0016] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program can implement the above method when executed by a processor.

[0017] The embodiment of the present invention provides a fan control method, device, air conditioner and storage medium. The method includes: being controlled by a start-up instruction for starting the air conditioner, confirming whether it is necessary to start the compressor of the air conditioner; if it is necessary to start the compressor of the air conditioner, obtaining the condensing pressure of the outdoor unit of the air conditioner; if the condensing pressure is greater than a first preset high-pressure critical value, starting the fan of the air conditioner and maintaining the compressor in a closed state; confirming the target gear of the fan according to the condensing pressure and controlling the fan to run at the speed corresponding to the target gear for a first preset time, and then controlling the compressor to start. In the embodiment of the present invention, when the air conditioner is started, if it is necessary to start the compressor, the condensing pressure will be obtained first, and when the condensing pressure is greater than the first preset high-pressure critical value, the fan will be started first and the compressor will be maintained in a closed state to prevent the compressor from starting under a high-pressure state. After the fan is started, the speed of the fan is adjusted according to the condensing pressure to make it consistent with the target speed, and after the fan runs for a period of time, that is, after the condensing pressure drops, the compressor is started again, thereby preventing the compressor from being protected by high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 is a flow chart of a fan control method provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a first sub-process of a fan control method provided by an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a second sub-process of the fan control method provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a third sub-process of the fan control method provided in an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of a fourth sub-process of the fan control method provided by an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of a fifth sub-process of the fan control method provided in an embodiment of the present invention;

[0025] Figure 7 is a schematic block diagram of a fan control device provided by an embodiment of the present invention;

[0026] Figure 8 is a schematic block diagram of an air conditioner provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, operations, elements, components and / or groups thereof.

[0029] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular forms of "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" used in the specification of the present invention and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0030] See also Figure 1 , Figure 1is a flow chart of a fan control method provided by an embodiment of the present invention. The fan control method of the embodiment of the present invention can be applied to an air conditioner to control the fan speed according to the condensing pressure to reduce the condensing pressure and avoid starting the compressor under high pressure. Figure 1 As shown, the method includes steps S110 to S140.

[0031] S110, under the control of a start-up instruction for starting the air conditioner, confirming whether it is necessary to start the compressor of the air conditioner.

[0032] In the embodiment of the present invention, the air conditioner is generally provided with a compressor, a fan, a condenser and other devices for maintaining the normal operation of the air conditioner. When a start-up instruction for starting the air conditioner is detected, it is confirmed whether the air conditioner needs to start the compressor. The start-up instruction is usually issued by a user. For example, the user can control the start and stop of the air conditioner through a remote controller and other devices, and control the operating state of the air conditioner through the remote controller. After the air conditioner is started and during the operation of the air conditioner, it is detected whether the compressor needs to be started.

[0033] When the air conditioner is running, it will confirm whether the compressor needs to be started according to the automatic control logic of the whole machine, which is usually related to multiple factors such as indoor temperature, set temperature, system pressure, temperature, cooling demand and heating demand. When the automatic control logic of the air conditioner needs to start the compressor, it can obtain the instruction to start the compressor and keep the compressor in the off state, and confirm whether the compressor needs to be started according to the current condensing pressure of the condenser of the air conditioner outdoor unit.

[0034] S120: If it is necessary to start the compressor of the air conditioner, the condensing pressure of the outdoor unit of the air conditioner is obtained.

[0035] In the embodiment of the present invention, the condensing pressure refers to the pressure generated when the refrigerant changes from gas to liquid in the condenser, which can be measured by a condensation sensor. When the compressor needs to be started, the condensing pressure of the outdoor unit of the air conditioner, that is, the condensing pressure of the condenser, is obtained.

[0036] S130: If the condensing pressure is greater than a first preset high pressure critical value, the fan of the air conditioner is started and the compressor is kept in an off state.

[0037] In the embodiment of the present invention, the first preset high-pressure critical value is an empirical value, which can be obtained by conducting multiple experiments on the air conditioner. The first preset high-pressure critical value is a judgment condition for starting the compressor. After obtaining the condensing pressure, the smaller value between the condensing pressure and the first preset high-pressure critical value is compared. When the condensing pressure is less than or equal to the first preset high-pressure critical value, the compressor can be started normally. When the condensing pressure is greater than the first preset high-pressure critical value, the compressor is maintained in an off state. The condensing pressure is a real-time pressure, that is, the air conditioner obtains the condensing pressure in real time through the condensing sensor.

[0038] S140, confirming the target gear of the fan according to the condensing pressure and controlling the fan to run at a speed corresponding to the target gear for a first preset time, and then controlling the compressor to start.

[0039] In an embodiment of the present invention, when the condensing pressure is greater than the first preset high pressure critical value, the target gear of the fan is confirmed according to the actual value of the condensing pressure, that is, different condensing pressures can correspond to different fan gears. Multiple gears can be preset in advance to correspond to different condensing pressures. For example, three gears can be preset, namely the first preset gear, the second preset gear and the third preset gear. The first preset gear, the second preset gear and the third preset gear correspond to the first interval, the second interval and the third interval respectively. Then, when the condensing pressure is in the first interval, the target gear is the first preset gear, when the condensing pressure is in the second interval, the target gear is the second preset gear, and when the condensing pressure is in the third interval, the target gear is the third gear.

[0040] After the fan starts and maintains the speed corresponding to the target gear for the first preset time, the compressor is controlled to start normally. The first preset time is the running time of the fan after reaching the speed corresponding to the target gear, which is an empirical value. For example, the first preset time can be 30 seconds. Then, when the fan maintains the target speed for 30 seconds, the compressor is controlled to start. After the fan runs for the first preset time, it can dissipate heat for the outdoor unit and reduce the condensing pressure of the outdoor unit.

[0041] See also Figure 2 In some embodiments, such as in an embodiment of the present invention, step S140 also includes steps S141-S144.

[0042] S141, respectively obtaining a second preset high pressure critical value and a third preset high pressure critical value;

[0043] S142, if the condensing pressure is greater than the first preset high pressure critical value and less than or equal to the second preset high pressure critical value, controlling the fan to operate at a first preset gear;

[0044] S143, if the condensing pressure is greater than the second preset high pressure critical value and less than or equal to the third preset high pressure critical value, controlling the fan to operate at a second preset gear;

[0045] S144: If the condensing pressure is greater than the third preset high pressure critical value, the fan is controlled to operate according to the third preset gear.

[0046] In the embodiment of the present invention, the rated speed of the fan corresponds to the third preset gear, then 50% of the rated speed can correspond to the second preset gear, and 20% of the rated speed can correspond to the first preset gear. It can be understood that the division of gears is not limited to the above division method.

[0047] If the first preset high pressure critical value is less than the second preset high pressure critical value, and the second preset high pressure critical value is less than the third preset high pressure critical value, different intervals can be formed by the first preset high pressure critical value, the second preset high pressure critical value, and the third preset high pressure critical value, and the corresponding gear is determined according to the interval in which the condensing pressure falls. For example, the first interval corresponds to between the first preset high pressure critical value and the second preset high pressure critical value, the second interval corresponds to between the second preset high pressure critical value and the third preset high pressure critical value, and the third interval corresponds to greater than the third preset high pressure critical value.

[0048] In actual use, if the condensing pressure is between the first preset high-pressure critical value and the second preset high-pressure critical value, the fan can be controlled to start according to the first preset gear, that is, 20% of the rated power, and after the fan maintains running at 20% of the rated power for the first preset time, the compressor is controlled to start.

[0049] See also Figure 3 In some embodiments, such as in the embodiment of the present invention, step S140 also includes step S150.

[0050] S150: During a second preset time of operation of the compressor, periodically adjust the fan speed according to the condensing pressure.

[0051] In an embodiment of the present invention, within the second preset time after the compressor is started, the fan speed can continue to be periodically adjusted according to the condensing pressure. For example, the second preset time can be 30 seconds, and the adjustment period can be 5 seconds. Then, within 30 seconds after the compressor is started, the fan speed is adjusted every 5 seconds according to the condensing pressure to match the fan speed with the condensing pressure, and in this process, the fan speed must not be lower than 20% of the rated speed, so that the pressure reduction process can be continuously performed to avoid high-pressure protection of the compressor. After the compressor runs for 30 seconds, it can enter the normal speed regulation operation state.

[0052] See also Figure 4In some embodiments, such as the present embodiment, step S120 also includes step S160.

[0053] S160: If the condensing pressure is less than the first preset high pressure critical value, the compressor is controlled to start normally and the operating state of the fan is adjusted according to the condensing pressure.

[0054] In an embodiment of the present invention, when the condensing pressure is less than the first preset high pressure critical value, the compressor is controlled to start directly and enter a normal speed regulation operation state, that is, the operation state of the fan is adjusted according to the condensing pressure.

[0055] See also Figure 5 In some embodiments, such as the present embodiment, the step S160 also includes steps S161-S167.

[0056] S161, respectively obtaining a first preset normal pressure critical value, a second preset normal pressure critical value, a third preset normal pressure critical value, a fourth preset normal pressure critical value, and a fifth preset normal pressure critical value;

[0057] S162, if the condensing pressure is less than or equal to the first preset normal pressure critical value, maintaining the fan in an off state;

[0058] S163, if the condensing pressure is greater than the first preset normal pressure critical value and less than or equal to the second preset normal pressure critical value, adjusting the wind speed of the fan according to a preset speed regulation table, a first preset speed regulation amplitude, and a first preset speed regulation period;

[0059] S164, if the condensing pressure is greater than the second preset normal pressure critical value and less than or equal to the third preset normal pressure critical value, adjusting the wind speed of the fan according to the preset speed regulation table, the second preset speed regulation amplitude and the second preset speed regulation period;

[0060] S165, if the condensing pressure is greater than the third preset normal pressure critical value and less than or equal to the fourth preset normal pressure critical value, adjusting the wind speed of the fan according to the preset speed regulation table, the third preset speed regulation amplitude and the third preset speed regulation period;

[0061] S166, if the condensing pressure is greater than the fourth preset normal pressure critical value and less than or equal to the fifth preset normal pressure critical value, adjusting the wind speed of the fan according to the preset speed regulation table, the fourth preset speed regulation amplitude and the fourth preset speed regulation period;

[0062] S167: If the condensing pressure is greater than the fifth preset normal pressure critical value, the fan is operated at rated power.

[0063] In an embodiment of the present invention, the first preset normal pressure critical value, the second preset normal pressure critical value, the third preset normal pressure critical value, the fourth preset normal pressure critical value and the fifth preset normal pressure critical value are all empirical values, and the first preset normal pressure critical value, the second preset normal pressure critical value, the third preset normal pressure critical value, the fourth preset normal pressure critical value and the fifth preset normal pressure critical value increase in sequence. The first speed regulation cycle, the second speed regulation cycle, the third speed regulation cycle and the fourth speed regulation cycle are speed regulation cycles of different pressure intervals, which can be continuously adaptively corrected according to the AI ​​autonomous learning genetic control algorithm. Generally, the higher the pressure interval, the smaller the speed regulation cycle. The first preset speed regulation amplitude, the second preset speed regulation amplitude, the third preset speed regulation amplitude and the fourth preset speed regulation amplitude can all be obtained by multiplying the fan speed change amount and the corresponding fan speed change amount coefficient at each pressure speed regulation cycle. The preset speed regulation table is a corresponding table of pressure intervals and speeds.

[0064] For example, the first preset normal pressure critical value is Pc1, the second preset normal pressure critical value is Pc2, the third preset normal pressure critical value is Pc3, the fourth preset normal pressure critical value is Pc4, and the fifth preset normal pressure critical value is Pc5. The first speed regulation cycle is T1, the second speed regulation cycle is T2, the third speed regulation cycle is T3, and the fourth speed regulation cycle is T4. The first fan speed change coefficient is β1, the second fan speed change coefficient is β2, the third fan speed change coefficient is β3, and the fourth fan speed change coefficient is β4. The fan speed change is △D, and Pout is the condensing pressure. When Pout≤PC1, the fan is in the off state. When PC1<Pout≤Pc2, the speed regulation cycle is T1, and the speed regulation amplitude is △D*β1. Then, the target speed corresponding to the current Pout is confirmed according to the preset speed regulation table. On the basis of the current speed, the speed regulation amplitude is △D*β1 each time, and the speed regulation cycle is T1, and the fan speed is adjusted to be consistent with the target speed. Among them, the preset speed control table can be shown in the following table (1).

[0065] Condensing pressure Speed ​​(rpm) Speed ​​difference between gears (rpm) P＜2000 2000≤P＜2020 106 2020≤P＜2040 119 13 2040≤P＜2060 132 13 2060≤P＜2080 145 13 2080≤P＜2100 159 14 (1)

[0067] It can be seen from Table (1) that when Pout is between 2000 and 2020, the target speed is 106, and the current speed needs to be adjusted to be consistent with the target speed. It can be understood that Table (1) is only an embodiment of the preset speed adjustment table, which can be adjusted according to different models of air conditioners.

[0068] See also Figure 6 In some embodiments, such as the present embodiment, the fan control method further includes steps S170-S180.

[0069] S170, if it is detected that the compressor is turned off, controlling the fan to operate according to a preset shutdown gear;

[0070] S180: If it is detected that the condensing pressure is less than the sixth preset normal pressure critical value, the fan is turned off.

[0071] In an embodiment of the present invention, the air conditioner can determine the need to shut down the compressor based on automatic control logic. When it is detected that the compressor is shut down, the fan can be maintained running according to a preset shutdown position. The preset shutdown position can be 50% of the rated speed. When the fan runs at the preset shutdown position for a certain period of time, or when the condensing pressure is less than the sixth preset normal pressure critical value, the fan is turned off.

[0072] The fan control method disclosed in the present invention can obtain the condensing pressure first when the air conditioner is started, if the compressor needs to be started. When the condensing pressure is greater than a first preset high-pressure critical value, the fan is started first and the compressor is maintained in a closed state to prevent the compressor from starting under a high-pressure state. After the fan is started, the fan speed is adjusted according to the condensing pressure to make it consistent with the target speed. After the fan has run for a period of time, that is, after the condensing pressure drops, the compressor is started again to prevent the compressor from being protected from high pressure.

[0073] Figure 7 is a schematic block diagram of a fan control device 200 provided in an embodiment of the present invention. Figure 7 As shown, corresponding to the above fan control method, the present invention also provides a fan control device 200. The fan control device 200 includes a unit for executing the above fan control method. Figure 7 The fan control device 200 includes a first confirmation unit 201 , a first acquisition unit 202 , a first starting unit 203 , and a second starting unit 204 .

[0074] The first confirmation unit 201 is used to be controlled by a start instruction of starting the air conditioner and confirm whether the compressor of the air conditioner needs to be started;

[0075] A first acquisition unit 202, configured to acquire a condensing pressure of an outdoor unit of the air conditioner if the compressor of the air conditioner needs to be started;

[0076] A first starting unit 203, configured to start the fan of the air conditioner and maintain the compressor in an off state if the condensing pressure is greater than a first preset high pressure threshold value;

[0077] The second starting unit 204 determines the target gear of the fan according to the condensing pressure and controls the fan to run at a speed corresponding to the target gear for a first preset time, and then controls the compressor to start.

[0078] In some embodiments, such as this embodiment, the second starting unit 204 further includes a second acquiring unit, a first operating unit, a second operating unit, and a third operating unit.

[0079] The second acquisition unit is used to respectively acquire the second preset high pressure critical value and the third preset high pressure critical value;

[0080] The first operating unit is used to control the fan to operate according to a first preset gear if the condensing pressure is greater than the first preset high pressure critical value and less than or equal to the second preset high pressure critical value.

[0081] a second operating unit, configured to control the fan to operate at a second preset gear if the condensing pressure is greater than the second preset high pressure critical value and less than or equal to the third preset high pressure critical value;

[0082] The third operating unit is used to control the fan to operate according to a third preset gear if the condensing pressure is greater than the third preset high pressure critical value.

[0083] In some embodiments, such as this embodiment, the fan control device 200 further includes a first adjustment unit.

[0084] Wherein, the first adjustment unit is used to periodically adjust the fan speed according to the condensing pressure during the second preset time of the operation of the compressor.

[0085] In some embodiments, such as this embodiment, the fan control device 200 further includes a second adjustment unit.

[0086] Wherein, the second adjustment unit is used to control the normal start-up of the compressor and adjust the operating state of the fan according to the condensing pressure if the condensing pressure is less than the first preset high-pressure critical value.

[0087] In some embodiments, such as the present embodiment, the second adjustment unit further includes a third acquisition unit, a first closing unit, a third adjustment unit, a fourth adjustment unit, a fifth adjustment unit, a sixth adjustment unit, and a seventh adjustment unit.

[0088] The third acquisition unit is used to respectively acquire the first preset normal pressure critical value, the second preset normal pressure critical value, the third preset normal pressure critical value, the fourth preset normal pressure critical value and the fifth preset normal pressure critical value;

[0089] A first closing unit, configured to maintain the fan in a closed state if the condensing pressure is less than or equal to the first preset normal pressure critical value;

[0090] a third adjustment unit, configured to adjust the wind speed of the fan according to a preset speed regulation table, a first preset speed regulation amplitude, and a first preset speed regulation period if the condensing pressure is greater than the first preset normal pressure critical value and less than or equal to the second preset normal pressure critical value;

[0091] a fourth adjustment unit, configured to adjust the wind speed of the fan according to the preset speed regulation table, the second preset speed regulation amplitude and the second preset speed regulation period if the condensing pressure is greater than the second preset normal pressure critical value and less than or equal to the third preset normal pressure critical value;

[0092] a fifth adjustment unit, configured to adjust the wind speed of the fan according to the preset speed regulation table, the third preset speed regulation amplitude and the third preset speed regulation period if the condensing pressure is greater than the third preset normal pressure critical value and less than or equal to the fourth preset normal pressure critical value;

[0093] a sixth adjustment unit, configured to adjust the wind speed of the fan according to the preset speed regulation table, the fourth preset speed regulation amplitude and the fourth preset speed regulation period if the condensing pressure is greater than the fourth preset normal pressure critical value and less than or equal to the fifth preset normal pressure critical value;

[0094] The seventh adjustment unit is used to operate the fan at rated power if the condensing pressure is greater than the fifth preset normal pressure critical value.

[0095] In some embodiments, such as the present embodiment, the fan control device 200 further includes a first detection unit and a second detection unit.

[0096] Wherein, the first detection unit is used to control the fan to operate according to a preset shutdown gear if it is detected that the compressor is turned off;

[0097] The second detection unit is used to turn off the fan if it is detected that the condensing pressure is less than a sixth preset normal pressure critical value.

[0098] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned fan control device and each unit can refer to the corresponding description in the aforementioned method embodiment, and for the convenience and brevity of description, it will not be repeated here.

[0099] The fan control device can be implemented in the form of a computer program. Figure 8 The air conditioner shown is running.

[0100] See also Figure 8 , Figure 8This is a schematic block diagram of an air conditioner provided in an embodiment of the present application. It can be a terminal or a server, wherein the terminal can be an electronic device with communication function such as a smart phone, a tablet computer, a laptop computer, a desktop computer, a personal digital assistant, and a wearable device. The server can be an independent server or a server cluster composed of multiple servers.

[0101] See also Figure 8 The air conditioner 300 includes a processor 302 , a memory and an interface 307 connected via a system bus 301 , wherein the memory may include a non-volatile storage medium 303 and an internal memory 304 .

[0102] The non-volatile storage medium 303 may store an operating system 3031 and a computer program 3032. When the computer program 3032 is executed, the processor 302 may execute a wind turbine control method.

[0103] The processor 302 is used to provide computing and control capabilities to support the operation of the entire air conditioner 300 .

[0104] The internal memory 304 provides an environment for the operation of the computer program 3032 in the non-volatile storage medium 303. When the computer program 3032 is executed by the processor 302, the processor 302 can execute a fan control method.

[0105] The interface 305 is used to communicate with other devices. Those skilled in the art will appreciate that Figure 8 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the air conditioner 300 to which the scheme of the present application is applied. The specific air conditioner 300 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0106] It should be understood that in the embodiment of the present application, the processor 302 may be a central processing unit (CPU), and the processor 302 may also be other general-purpose processors, digital signal processors (FSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0107] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiment of the above method.

[0108] Therefore, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program. When the computer program is executed by a processor, any embodiment of the above-mentioned wind turbine control method is implemented.

[0109] The storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, or any other computer-readable storage medium that can store program codes.

[0110] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0111] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0112] The steps in the method of the embodiment of the present invention can be adjusted in order, combined and deleted according to actual needs. The units in the device of the embodiment of the present invention can be combined, divided and deleted according to actual needs. In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0113] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for an air conditioner to perform all or part of the steps of the method described in each embodiment of the present invention.

[0114] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0115] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0116] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A fan control method, characterized in that: Applied to an air conditioner, the method comprises: Controlled by a start-up instruction for starting the air conditioner, confirming whether it is necessary to start the compressor of the air conditioner; If it is necessary to start the compressor of the air conditioner, the condensing pressure of the outdoor unit of the air conditioner is obtained; If the condensing pressure is greater than a first preset high pressure critical value, starting the fan of the air conditioner and maintaining the compressor in an off state; The compressor is started after the target gear of the fan is confirmed according to the condensing pressure and the fan is controlled to run at a speed corresponding to the target gear for a first preset time.

2. The method according to claim 1, characterized in that The step of confirming the target gear position of the fan according to the condensing pressure comprises: respectively obtaining a second preset high pressure critical value and a third preset high pressure critical value; If the condensing pressure is greater than the first preset high pressure critical value and less than or equal to the second preset high pressure critical value, the fan is controlled to operate according to the first preset gear.

3. The method according to claim 2, characterized in that After the steps of respectively obtaining the second preset high pressure critical value and the third preset high pressure critical value, the method further includes: If the condensing pressure is greater than the second preset high pressure critical value and less than or equal to the third preset high pressure critical value, controlling the fan to operate according to the second preset gear; If the condensing pressure is greater than the third preset high pressure critical value, the fan is controlled to operate according to the third preset gear.

4. The method according to claim 1, characterized in that: After the step of confirming the target gear of the fan according to the condensing pressure and controlling the fan to run at a speed corresponding to the target gear for a first preset time and then controlling the compressor to start, the method further includes: During a second preset time when the compressor is running, the fan speed is periodically adjusted according to the condensing pressure.

5. The method according to claim 1, characterized in that After the step of obtaining the condensing pressure of the outdoor unit of the air conditioner, the method further includes: If the condensing pressure is less than the first preset high pressure critical value, the compressor is controlled to start normally and the operating state of the fan is adjusted according to the condensing pressure.

6. The method according to claim 5, characterized in that The step of adjusting the operating state of the fan according to the condensing pressure comprises: Respectively obtain a first preset normal pressure critical value, a second preset normal pressure critical value, a third preset normal pressure critical value, a fourth preset normal pressure critical value, and a fifth preset normal pressure critical value; If the condensing pressure is less than or equal to the first preset normal pressure critical value, maintaining the fan in an off state; If the condensing pressure is greater than the first preset normal pressure critical value and less than or equal to the second preset normal pressure critical value, adjusting the wind speed of the fan according to a preset speed regulation table, a first preset speed regulation amplitude and a first preset speed regulation period; If the condensing pressure is greater than the second preset normal pressure critical value and less than or equal to the third preset normal pressure critical value, the wind speed of the fan is adjusted according to the preset speed regulation table, the second preset speed regulation amplitude and the second preset speed regulation period; If the condensing pressure is greater than the third preset normal pressure critical value and less than or equal to the fourth preset normal pressure critical value, the wind speed of the fan is adjusted according to the preset speed regulation table, the third preset speed regulation amplitude and the third preset speed regulation period; If the condensing pressure is greater than the fourth preset normal pressure critical value and less than or equal to the fifth preset normal pressure critical value, the wind speed of the fan is adjusted according to the preset speed regulation table, the fourth preset speed regulation amplitude and the fourth preset speed regulation period; If the condensing pressure is greater than the fifth preset normal pressure critical value, the fan is operated at rated power.

7. The method according to claim 1, characterized in that The method further comprises: If it is detected that the compressor is turned off, the fan is controlled to operate according to a preset shutdown gear; If it is detected that the condensing pressure is less than the sixth preset normal pressure critical value, the fan is turned off.

8. A fan control device, characterized in that: Applied to an air conditioner, the device comprises: A first confirmation unit, configured to be controlled by a start instruction for starting the air conditioner and to confirm whether the compressor of the air conditioner needs to be started; a first acquisition unit, configured to acquire a condensing pressure of an outdoor unit of the air conditioner if it is necessary to start a compressor of the air conditioner; a first starting unit, configured to start the fan of the air conditioner and maintain the compressor in an off state if the condensing pressure is greater than a first preset high pressure threshold; The second starting unit determines the target gear of the fan according to the condensing pressure and controls the fan to run at a speed corresponding to the target gear for a first preset time, and then controls the compressor to start.

9. An air conditioner, characterized in that: The air conditioner comprises a memory and a processor connected to the memory; the memory is used to store a computer program; the processor is used to run the computer program stored in the memory to execute the steps of the method as claimed in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 can be implemented.

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